Sign Africa Journal November / December 2018 | Page 39

FEATURE 3D CAD Model Requires 3D CAD drawing ability, which can be expensive. More complex designs are usually saved as STL, IGES or STL files using 3D CAD software e.g. SolidWorks, ProE, Catia or Rhinoceros. Some 2D drawing packages can be used to create simple 3D designs e.g. V-Carve. used for rapid machining when quick block models are required, to harder high density high heat boards for production runs. Try a density of 650kg/m 3 for most applications. Porous resins (Metapor and Alwapor) are also available that do not require vacuum holes. CNC Machined Aluminium Aluminium is the best material - it’s hard wearing and produces fine detailed vacuum formings. Typical grades of aluminium suitable for machining would be: HE15 also known as 2014 or HE30, which is also known as 6082. CNC Machined Tooling Board There are a range of tooling boards available, starting with low density foam Remember: what you draw in CAD is what you get, so double check before you start machining. Maritime Marketing ([phone] www.maritimemarketing.co.za Unit 7, Gazelle Place, Corporate Park South, Midrand Maxsigns (PTY) Ltd Is proudly a level One B-BBEE Company (135% Procurement Recognition) Tel: [phone] 314 9473 CALL IN FOR MORE www.maxsigns.co.za [email protected] PRODUCTS, PRICES & SPECIALS SPECIALISTS IN: DISPLAY EQUIPMENT MEDIA SUBSTRATES PROMOTIONAL ITEMS AND GIFTS USB’s X-Banners Roll Up Banners Wall Banners Flag Banners Self-Adhesive Vinyls Frontlit PVC www.SignAfrica.com | NOV/DEC 2018 ISSUE 98 PVC Foam Sheets Pens Roll Up Media Anti-Curl Clothing and Apparel Executive Gifts PRINTING AND SIGNAGE ACCESSORIES Retractable Knives and Cutters Scrapers Blades Vernier Scales 39